5D MKII go with non-Canon flash?
I'm about to purchase a 5D MKII but will need an on camera flash for weddings, indoors and such. Are after market flashes (Bower, Vivatar....)good to go with or should I pay the premium price of a Canon flash. For years I've used an SB800 with my Nikon outfit and would like a comparable flash for the Canon. An suggestions would be appreciated.